Have you ever tried travelling first class? I haven't. But I tried business class and I was already blown away. Service, headphones, sleeping opportunity, it was awesome.
10 out of 10, would always do it again. Imagine having an oversea flight and arriving relaxed instead of utterly exhausted.
I just never really get sleep in flights otherwise and its just a drag combined with jetlag. It steals precious hours of your life! Hours you could be spending enjoying your destination already.